EP0497576A1 - Kombinationsventil - Google Patents
Kombinationsventil Download PDFInfo
- Publication number
- EP0497576A1 EP0497576A1 EP92300751A EP92300751A EP0497576A1 EP 0497576 A1 EP0497576 A1 EP 0497576A1 EP 92300751 A EP92300751 A EP 92300751A EP 92300751 A EP92300751 A EP 92300751A EP 0497576 A1 EP0497576 A1 EP 0497576A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- main channel
- flow
- side port
- adapter
- resilient member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M25/0075—Valve means
- A61M2025/0076—Unidirectional valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M25/0075—Valve means
- A61M2025/0076—Unidirectional valves
- A61M2025/0078—Unidirectional valves for fluid inflow from the body into the catheter lumen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/24—Check- or non-return valves
Definitions
- This invention relates to side port adapters and more particularly, valves within such adapters to prevent back flow.
- Side port adapters may be added to an inserted catheter to provide an additional site for infusion; in particular, a side port adapter could be attached to the adapter of a placed catheter.
- a side port adapter could be attached to the adapter of a placed catheter.
- the addition of a side port adapter to the adapter of the catheter would permit connection of more than one line or a line and a syringe to the placed catheter.
- a side port catheter adapter with a valve shown in U.S. Patent 3,416,567, has a capped side port and a flexible tube within a main passage of that adapter.
- An arrangement such as shown in the 567 patent selectively permits introduction of medication through the side port but prevents back flow through the side port after the introduction.
- a syringe can be used to inject fluid and collapse sufficiently the sleeve in the main passage thus opening the valve with the pressure of the flowing injectate as it moves from the syringe.
- Various other valves have been tried for a similar purpose as in U.S. Patent 4,063,555.
- a twin valve T-connector for use with syringes and injection devices.
- Each check valve may be independently and separately used for controlling to a single direction the flow of fluid through a respective passage of the coupling body.
- Duck bill check valves are shown, while the arrangement is similar to the concept presented herein, that coupling body with valves is not identical since the side port intersects with the main passage proximal relative to the check valve. Consequently, two independent separate check valves are required instead of one as is disclosed and claimed herein.
- U.S. Patent 3,710,942 shows a twin passage, double valve arrangement wherein foam is used to encourage closure of the check valve and prevent backflow.
- foam is used to encourage closure of the check valve and prevent backflow.
- mushroom style valves of various shapes are disclosed. The valves are separate and independent from one another and the intersection of the passages are not positioned as disclosed herein.
- valves including luer activated valves include not providing reliable activation of an automatic valve within theadapter and valves that require they be opened by contact with another device which may pass infection.
- the side port adapter with a combination valve as shown and disclosed herein overcomes the problems of the aforesaid valves and side port adapters.
- the removable side port adapter provides flexibility in that the side port can be removed after the appropriate period of use, thus preventing subsequent potential contamination or misuse.
- a combination valve for a side port adapter to prevent back flow through the side port and through a main channel has an adapter having its main channel along an axis thereof.
- the side port most preferably intersects with the main channel to provide access for flow therethrough.
- a resilient member with a passage therethrough has disposed therein a check valve located substantially normal to the axis and across the passage.
- the check valve opens with flow along the axis in a direction and closes to flow in an opposite direction.
- the resilient member is normally against the intersection to close the intersection until the member deflects and opens under fluid pressure within the side port exceeding its resilience.
- the main channel may have an inlet and an outlet associated therewith and positioned along the axis.
- the outlet in the preferred embodiment is a male luer for easy fluid tight connection to a catheter.
- the inlet in the preferred embodiment is a female luer for easy fluid tight connection with a mating fluid supply having a luer connection and arranged to provide flow through the main channel to the outlet.
- the check valve within the resilient member functions to prevent fluids injected through the side port from flowing toward the main channel inlet, forcing the fluid to flow toward the main channel outlet, and thus insuring the most rapid introduction into a patients vascular system.
- the check valve may include a web across the passage with a normally closed slit. The web is shaped to open when subject to flow in the direction from inlet to the outlet and to resist opening when subject to flow in the opposite direction.
- the web shape most preferable is that of a duck bill that opens when subject to pressure that would force flow in the direction through the duck bill and resists opening when subject to pressure that would tend to force flow in the opposite direction into the duck bill.
- the resilient member is preferably a cylindrical shape and the main channel is also a cylindrical shape to receive the resilient member.
- the cylindrical shape may preferably have a circular cross section.
- the substantially cylindrical resilient member most preferably has an edge at a distal end thereof.
- the adapter has an annular shoulder disposed within the main channel distal along the axis and relative to the side port to locate the edge of the cylindrical member within the main channel.
- a method of providing a combination valve in a side port adapter to prevent back flow therethrough may include the step of providing an adapter with a main channel and a side port that intersects with the main channel. That step is followed by the step of placing a resilient member having a passage therethrough in the main channel to cover the intersection and prevent flow from the outlet to the side port.
- the step of providing a duck bill check valve in the passage permits flow through the main channel in the direction from inlet to outlet and prevents flow in the opposite direction.
- Added steps may include packing and sterilizing the valve and adapter.
- Figure 1 is a perspective view of the preferred embodiment of a combination valve shown in a side port adapter which is partially in cross section so the location of the combination valve in its side port adapter is apparent.
- Figure 2 is a side cross-section view, taken along lines 2-2 in Figure 1 and showing the side port adapter and the combination valve in cross-section.
- Figure 3 is a side cross-sectional view similar to Figure 2, taken along lines 3-3 in Figure 1 and illustrating how the combination valve deflects under flow through the side port.
- Figure 4 is a side cross-sectional view similar to Figure 2, taken along lines 4-4 in Figure 1 and illustrating how the combination valve opens due to flow through the main channel.
- Figure 1 shows a perspective view of a combination valve 10 for a side port adapter 11 with the adapter 11 partially in cross section in order to show the location of the combination valve 10.
- the adapter 11 includes a side port 12 and a main channel 13.
- An axis "A" is centered in the main channel 13 and the main channel 13 has an inlet 14 at its proximal end 15 and an outlet 16 at its distal end 17.
- Proximal is used herein relative to the position of the medic and distal relative to the patient and as the adapter 11 would normally be used.
- the combination valve 10 includes a substantially cylindrical resilient member 19 having a passage 20 therethrough.
- the passage 20 is aligned with the main channel 13 and centered about the axis "A".
- a check valve 21 Positioned substantially normal to the axis "A" and across the passage 20 is a check valve 21 which opens when subjected to flow in a direction designated "B" as illustrated in Figure 4 and shown by arrows.
- the flow is from the inlet 14 to the outlet 16.
- the check valve 21 is substantially closed to flow in an opposite direction, i.e. from the outlet 16 to the inlet 14, see Figure 2.
- the substantially cylindrical resilient member 19 is dimensioned such that it fits snugly within the main channel 13 of the adapter 11.
- the substantially cylindrical resilient member 19 thus closes the side port 12 of the intersection 18 with the main channel 13 as shown in Figures 1, 2 and 4.
- member 19 acts to prevent back flow from the outlet 16 to the side port 12.
- flow from the inlet 14 to the side port 12 is prevented.
- this side port fluid pressure exceeds the resilience of the substantially cylindrical resilient member 19 and causes deflection of the member 19 as shown in Figure 3, flow through the side port 12 begins. Pressure sufficient to exceed the resilient or restoring force of the substantially cylindrical member 19 is required.
- a catheter 22, as in Figure 1 While not essential, it is useful to have a catheter 22, as in Figure 1, connected in fluid tight communication with the outlet 16.
- a rotatable luer collar 23 having internal female threads 24.
- the rotatable luer collar 23 rotates about a male luer taper 25 over the outlet 16 of the adapter 11 by in an annular groove 26 positioned proximally about the male luer taper 25.
- the adapter 11 is provided with a luer thread 27 around the inlet 14 such that a fluid supply 28 may be connected via a mating luer connector to the inlet 14 to provide flow through the main channel 13, as shown in Figures 2, 3 and 4.
- the substantially cylindrical resilient member 19 has an edge 29 at a distal end 30 thereof.
- the edge 29 is first inserted into the adapter 11 during assembly of the substantially cylindrical member 19 into the adapter 11.
- the annular shoulder 31 may be used to locate the edge 29 of the cylindrical resilient member 19 within main channel 13.
- the axial position of the resilient member 19 relative to the side port is important. Whether the cylindrical resilient member 19 is fully seated against the annular shoulder 31 such that the edge 29 is in abutment therewith as shown in Figures 1 through 4 or spaced slightly proximal thereto is not as important as the closure of the intersection 18. in particular, the substantially cylindrical resilient member 19 should close the intersection 18 of the side port 12 to the main channel 12 except under flow conditions as illustrated and described in connection with Figure 3.
- the combination valve 10 is preferably molded as one integral piece of resilient material such as an elastomer.
- the combination valve 10 can be made by assembling a cut piece of tubing and a check valve using adhesives or a welding process such as radio frequency energy or vulcanization.
- the check valve 21 is shown located in the middle of the substantially cylindrical resilient member 19, the check valve 21 can be shifted axially within the check combination valve 10 as required for ease of manufacturing or for enhancing flexibility in use. That is to say that the check valve 21 could be located away from the edge 29 in order to allow flow from the side port 12 to the main channel 13 through the intersection 18 under less pressure. Conversely, the check valve 21 could be located near the edge 29 to reinforce the substantially cylindrical resilient member 19 and thus inhibit flow from the side port 12 through the intersection 18 into the main channel 13. Also various resilient materials could he used to give the required level of flexibility of the substantially cylindrical resilient member 19.
- the preferred shape for the substantially cylindrical resilient member 19 is of circular cross section which fits snugly within the main channel 13 which also has a circular cross section of a diameter about the same as the outer diameter of the substantially cylindrical resilient member 19.
- the substantially cylindrical resilient member 19 may have an outside diameter dimensioned to provide a snug fit at the proximal end.
- the distal end of the substantially cylindrical resilient member 19 can be slightly less snug so that the side port valve opening is in the distal direction only.
- the main channel 13 can include a slight taper so that the diameter thereof is less about the proximal end of the substantially cylindrical resilient member 19 that the distal end thereof.
- the preferred taper results from a .005 inch decrease in inside diameter from distal to proximal over an axial length of about .300 inches.
- the check valve 21 includes a web 32 located across the passage 20. There is a slit 33 through the web 32, the slit 33 is cut so that the web 32 provides a normally closed barrier to unpressurized flow, leakage or seapage through the passage, see Figures 2 and 3.
- the web 32 is specifically shaped to open when subject to flow in the direction of arrows labeled "B" in Figure 4 and to resist opening when subject to flow in a direction opposite thereto. It is preferred that the web shape be sloped like a duckbill so that the slit opens when subject to flow as shown in Figure 4.
- a method for providing the combination valve 10 for the adapter 11 to prevent back flow through the main channel 13 therein and through the side port 12 thereof includes the step of providing the adapter 11 with the main channel 13 and an intersecting side port 12. An additional step places the cylindrical resilient member 19 with the passage 20 therethrough in the main channel 13 to cover the intersection 18 and prevent flow from the outlet 16 of the main channel 13 into the side port 12. An additional step provides the duckbill check valve 21 in the passage 20 to permit flow in the direction shown with arrows "B" in Figure 4 and to prevent flow in the opposite direction.
- the method may have an additional step of packaging combination valve 21 and its side port adapter 11 to prevent contamination.
- the method may also have an additional step of sterilizing the packaged combination valve 10 and its side port adapter 11.
- the side port adapter and combination valve hereof is useful to prevent transmission of infection and functions as automatic stop cock valve as well as a multiport adapter for addition to a placed catheter.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US648799 | 1991-01-31 | ||
US07/648,799 US5098405A (en) | 1991-01-31 | 1991-01-31 | Apparatus and method for a side port cathether adapter with a one piece integral combination valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0497576A1 true EP0497576A1 (de) | 1992-08-05 |
EP0497576B1 EP0497576B1 (de) | 1996-03-13 |
Family
ID=24602292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92300751A Expired - Lifetime EP0497576B1 (de) | 1991-01-31 | 1992-01-29 | Kombinationsventil |
Country Status (10)
Country | Link |
---|---|
US (1) | US5098405A (de) |
EP (1) | EP0497576B1 (de) |
JP (1) | JPH0626582B2 (de) |
AT (1) | ATE135241T1 (de) |
AU (1) | AU637761B2 (de) |
CA (1) | CA2057561C (de) |
DE (1) | DE69208904T2 (de) |
ES (1) | ES2087443T3 (de) |
NO (1) | NO914876L (de) |
NZ (1) | NZ240832A (de) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994015664A1 (en) * | 1993-01-07 | 1994-07-21 | Man Fai Shiu | Manifold |
EP0630661A1 (de) * | 1993-06-24 | 1994-12-28 | Critikon, Inc. | Intravenöses Katheterisieren |
WO1995003085A1 (en) * | 1993-07-20 | 1995-02-02 | Baxter International Inc. | Multi-function check valve |
EP1089029A2 (de) * | 1999-09-28 | 2001-04-04 | Tokai Rubber Industries, Ltd. | Verbindungsmuffe zur Verbindung von einem Metallrohr mit einem Kunststoffschlauch |
EP1486180A1 (de) * | 2003-06-10 | 2004-12-15 | Nakanishi Inc. | Verbindungsstück zur Flüssigkeitsversorgung |
WO2006036843A1 (en) * | 2004-09-24 | 2006-04-06 | Boston Scientific Scimed, Inc. | Safety y-port adaptor and medical catheter assembly including the same |
US8308691B2 (en) | 2006-11-03 | 2012-11-13 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
US9604184B2 (en) | 2013-03-06 | 2017-03-28 | Orthovita, Inc. | Mixing system and valve assembly |
US9844646B2 (en) | 2012-06-15 | 2017-12-19 | Vigmed Ab | Needle tip shielding device and fixing arrangement |
CN109549691A (zh) * | 2018-09-29 | 2019-04-02 | 江苏风和医疗器材股份有限公司 | 用于穿刺器的密封件和穿刺器 |
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US5601077A (en) * | 1991-08-07 | 1997-02-11 | Becton, Dickinson And Company | Nasal syringe sprayer with removable dose limiting structure |
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US5727594A (en) * | 1995-02-09 | 1998-03-17 | Choksi; Pradip | Low actuation pressure unidirectional flow valve |
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- 1992-01-29 DE DE69208904T patent/DE69208904T2/de not_active Expired - Lifetime
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Cited By (22)
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WO1994015664A1 (en) * | 1993-01-07 | 1994-07-21 | Man Fai Shiu | Manifold |
EP0630661A1 (de) * | 1993-06-24 | 1994-12-28 | Critikon, Inc. | Intravenöses Katheterisieren |
WO1995003085A1 (en) * | 1993-07-20 | 1995-02-02 | Baxter International Inc. | Multi-function check valve |
US5401255A (en) * | 1993-07-20 | 1995-03-28 | Baxter International Inc. | Multi-functional valve with unitary valving member and improved safety |
EP1089029A2 (de) * | 1999-09-28 | 2001-04-04 | Tokai Rubber Industries, Ltd. | Verbindungsmuffe zur Verbindung von einem Metallrohr mit einem Kunststoffschlauch |
EP1089029A3 (de) * | 1999-09-28 | 2003-05-28 | Tokai Rubber Industries, Ltd. | Verbindungsmuffe zur Verbindung von einem Metallrohr mit einem Kunststoffschlauch |
EP1486180A1 (de) * | 2003-06-10 | 2004-12-15 | Nakanishi Inc. | Verbindungsstück zur Flüssigkeitsversorgung |
WO2006036843A1 (en) * | 2004-09-24 | 2006-04-06 | Boston Scientific Scimed, Inc. | Safety y-port adaptor and medical catheter assembly including the same |
US7628775B2 (en) | 2004-09-24 | 2009-12-08 | Boston Scientific Scimed, Inc. | Safety Y-port adaptor and medical catheter assembly including the same |
US8419688B2 (en) | 2006-11-03 | 2013-04-16 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
US8308691B2 (en) | 2006-11-03 | 2012-11-13 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
US8460247B2 (en) | 2006-11-03 | 2013-06-11 | B Braun Melsungen Ag | Catheter assembly and components thereof |
US8591468B2 (en) | 2006-11-03 | 2013-11-26 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
US8597249B2 (en) | 2006-11-03 | 2013-12-03 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
RU2533736C2 (ru) * | 2006-11-03 | 2014-11-20 | Б. Браун Мельзунген Аг | Катетерное устройство |
US9370641B2 (en) | 2006-11-03 | 2016-06-21 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
US10682500B2 (en) | 2006-11-03 | 2020-06-16 | B. Braun Melsungen Ag | Catheter assembly and components thereof |
US9844646B2 (en) | 2012-06-15 | 2017-12-19 | Vigmed Ab | Needle tip shielding device and fixing arrangement |
US9604184B2 (en) | 2013-03-06 | 2017-03-28 | Orthovita, Inc. | Mixing system and valve assembly |
US9776150B2 (en) | 2013-03-06 | 2017-10-03 | Orthovita, Inc. | Mixing system and valve assembly |
US10143982B2 (en) | 2013-03-06 | 2018-12-04 | Orthovita, Inc. | Mixing system and valve assembly |
CN109549691A (zh) * | 2018-09-29 | 2019-04-02 | 江苏风和医疗器材股份有限公司 | 用于穿刺器的密封件和穿刺器 |
Also Published As
Publication number | Publication date |
---|---|
NO914876D0 (no) | 1991-12-11 |
CA2057561A1 (en) | 1992-08-01 |
EP0497576B1 (de) | 1996-03-13 |
DE69208904D1 (de) | 1996-04-18 |
US5098405A (en) | 1992-03-24 |
AU637761B2 (en) | 1993-06-03 |
NZ240832A (en) | 1994-10-26 |
JPH04303462A (ja) | 1992-10-27 |
ATE135241T1 (de) | 1996-03-15 |
CA2057561C (en) | 1994-11-01 |
NO914876L (no) | 1992-08-03 |
DE69208904T2 (de) | 1996-10-02 |
JPH0626582B2 (ja) | 1994-04-13 |
AU8960891A (en) | 1992-08-06 |
ES2087443T3 (es) | 1996-07-16 |
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